QUEST DIAGNOSTICS LLC
NPI 1730928565
Clinical Medical Laboratory in Natick, MA

Active since May 21, 2024CLIA 22D2305630 · Certificate of Compliance
1400 WORCESTER ST, NATICK, MA 01760(555) 555-1212 Get Directions Write a Review

NPPES record last updated: May 15, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Quest Diagnostics Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

QUEST DIAGNOSTICS LLC (NPI 1730928565) is a healthcare organization registered as a clinical medical laboratory in Natick, Massachusetts and active in the NPI registry since May 2024. The organization holds a CLIA Certificate of Compliance certificate valid through January 5, 2028 and lists Leah D Timmerman, Sr Vice President, as its authorized official.

NPPES Registry Identity

NPI1730928565
Entity TypeOrganization
Primary Taxonomy291U00000X
Legal Business NameQUEST DIAGNOSTICS LLC
Location Address1400 WORCESTER STNatick, MA 01760-1532
Mailing Address14275 Midway Rd Ste 400Addison, TX 75001-3661 · (774) 843-3062
Organization SubpartNo
Authorized OfficialLeah D TimmermanSr Vice President · (973) 520-2700
Enumeration DateMay 21, 2024
Last NPPES UpdateMay 15, 2025
NPPES CertifiedMay 15, 2025
NPI 1730928565 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyClinical Medical LaboratoryLaboratories
Taxonomy Code291U00000X
Definition
(1) A clinical laboratory is a facility for the biological, microbiological, serological, chemical, immunohematological, hematological, biophysical, cytological, pathological, or other examination of materials derived from the human body for the purpose of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, human beings. These examinations also include procedures to determine, measure, or otherwise describe the presence or absence of various substances or organisms in the body. Facilities only collecting or preparing specimens (or both) or only serving as a mailing service and not performing testing are not considered clinical laboratories. (2) Any facility that examines materials from the human body for purposes of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, or the assessment of, the health of human beings. Typical divisions of a clinical laboratory include hematology, cytology, bacteriology, histology, biochemistry, medical toxicology, and serology.
1400 WORCESTER ST, Natick, MA 01760

Accepted Insurance

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Compliance 22D2305630

Quest Diagnostics Massachusetts LLC · Natick, MA
Active · expires Jan 5, 2028
CLIA Number22D2305630
Laboratory TypeIndependent
Certificate Effective DateJanuary 6, 2026
Certificate Expiration DateJanuary 5, 2028
Laboratory DirectorDr. Dhay M. Kamel
Laboratory Phone(774) 721-5160
Laboratory LocationQuest Diagnostics Massachusetts LLC1400 Worcester Street, Natick, MA 01760
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Quest Diagnostics LLC's NPI number?

The NPI number for Quest Diagnostics LLC is 1730928565. It was assigned to this organization in the NPPES registry on May 21, 2024.

Where is Quest Diagnostics LLC located?

Quest Diagnostics LLC is located at 1400 Worcester St, Natick, MA 01760. The listed phone number is (555) 555-1212.

What is Quest Diagnostics LLC's specialty?

The primary specialty registered for this NPI is Clinical Medical Laboratory with taxonomy code 291U00000X.

Does Quest Diagnostics LLC hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 22D2305630) is associated with this NPI, valid through January 5, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Quest Diagnostics LLC accept?

Health plans from Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) list Quest Diagnostics LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Quest Diagnostics LLC was last updated on May 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.